'Cool Kids' cast interviews real-life students from Seoul National University after the 'SKY Castle' syndrome

Han Hyun Min says he regrets not talking to Red Velvet's Seulgi while filming together for 'Cool Kids'

Red Velvet's Seulgi confesses she's just an ordinary 24-year old in her 'Cool Kids' recruitment teaser

The Boyz are cool kids on the bus in 'The Sphere' concept photos

Ha Joo Yeon, Kassy, Janey, Coolkid, + 2 other eliminated contestants to come back to 'Unpretty Rapstar 3'

Which contestants take the third track on this week's 'Unpretty Rapstar'?

B1A4 are the cool kids in 'CeCi' pictorial

TEEN TOP are the newest old school cool kids on the block with 'NYLON'